Full Idea
The relation between what a thing is and what it is capable of doing and undergoing is naturally necessary.
Gist of Idea
The relation between what a thing is and what it can do or undergo relate by natural necessity
Source
Harré,R./Madden,E.H. (Causal Powers [1975], 1.II.C)
Book Reference
Harré,R/Madden,E.H.: 'Causal Powers: A Theory of Natural Necessity' [Blackwell 1975], p.14
A Reaction
Note that this was written in 1975, and in no way rests of Kripkean notions of rigid designation and necessary identities. Needs thought, but I take it to be an appealing proposal.
Related Idea
Idea 15220 To say something remains the same but lacks its capacities and powers seems a contradiction [Harré/Madden]